<!-- Update menu with colors layers really displayed in viewer -->
<!DOCTYPE html>
<html>
    <head>
        <title>Itowns - Color layers Visible</title>
        <meta charset="UTF-8">
        <link rel="stylesheet" type="text/css" href="css/example.css">
        <link rel="stylesheet" type="text/css" href="css/LoadingScreen.css">
        <meta name="viewport" content="width=device-width, initial-scale=1.0">
        <script src="https://cdnjs.cloudflare.com/ajax/libs/dat-gui/0.7.6/dat.gui.min.js"></script>
    </head>
    <body>
        <div id="viewerDiv"></div>
        <script src="js/GUI/GuiTools.js"></script>
        <script src="../dist/itowns.js"></script>
        <script src="js/GUI/LoadingScreen.js"></script>
        <script type="text/javascript">
            /* global itowns,document,GuiTools, setupLoadingScreen */
            var placement = {
                coord: new itowns.Coordinates('EPSG:4326', 2.351323, 48.856712),
                range: 25000000,
            }
            // iTowns namespace defined here
            var viewerDiv = document.getElementById('viewerDiv');
            var view = new itowns.GlobeView(viewerDiv, placement);
            var menuGlobe = new GuiTools('menuDiv', view);
            setupLoadingScreen(viewerDiv, view);

            function addColorLayerFromConfig(config) {
                config.source = new itowns.WMTSSource(config.source);
                var layer = new itowns.ColorLayer(config.id, config);
                layer.visible = true;
                view.addLayer(layer).then(menuGlobe.addLayerGUI.bind(menuGlobe));
            }

            function addElevationLayerFromConfig(config) {
                config.source = new itowns.WMTSSource(config.source);
                var layer = new itowns.ElevationLayer(config.id, config);
                view.addLayer(layer).then(menuGlobe.addLayerGUI.bind(menuGlobe));
            }

            itowns.Fetcher.json('./layers/JSONLayers/Ortho.json').then(addColorLayerFromConfig);
            itowns.Fetcher.json('./layers/JSONLayers/Cada.json').then(addColorLayerFromConfig);
            itowns.Fetcher.json('./layers/JSONLayers/WORLD_DTM.json').then(addElevationLayerFromConfig);
            itowns.Fetcher.json('./layers/JSONLayers/IGN_MNT_HIGHRES.json').then(addElevationLayerFromConfig);

            view.addEventListener(itowns.GLOBE_VIEW_EVENTS.GLOBE_INITIALIZED, function _() {
                // eslint-disable-next-line no-console
                console.info('Globe initialized');
                // Open folder color
                menuGlobe.colorGui.closed = false;
            });

            // Use frame requester to update menu before rendering
            view.addFrameRequester(itowns.MAIN_LOOP_EVENTS.BEFORE_RENDER, function _() {
                var displayedLayers = view.tileLayer.info.displayed.layers;

                var allLayers = view.getLayers(function a(l) { return l.isColorLayer || l.isElevationLayer; });

                allLayers.forEach(function b(layer) {
                    menuGlobe.colorLayerFolder(layer.id, displayedLayers.find(displayedLayer => displayedLayer.id == layer.id) ? 'rgb(57, 167, 57)' : 'rgb(255, 125, 125)');
                });
            });
        </script>
    </body>
</html>
